Fibre Bragg gratings with one defect towards development of optical networks interrogators

Ignacio Del Villar; Ignacio R. Matias; Francisco J. Arregui

doi:10.1504/ijista.2007.014130

Fibre Bragg gratings with one defect towards development of optical networks interrogators

Ignacio Del Villar
, Ignacio R. Matias^*
, Francisco J. Arregui

^*Corresponding author for this work

Public University of Navarre

Research output: Contribution to journal › Article › peer-review

Abstract

A theoretical analysis is given of an interrogator scheme for detection of the shift in resonance wavelength of a Fibre Bragg grating- (FBG-) based device. An Active Wavelength Tunable Filter (AWTF) allows adjusting the filtering of the signal received to the resonance wavelength of the FBG and knowing at the same time the value of the resonance wavelength. This avoids the need for a spectrum analyser. The Wavelength Tunable Filter (WTF) selected for the detection scheme is an FBG with a liquid crystal defect of optimised thickness whose refractive index is modified by the voltage applied, leading to a control of the central wavelength of the WTF. If the signal of several FBGs needs to be controlled, the scheme can be modified by using a Multiple Wavelength Tunable Filter (MWTF) consisting of as many WTFs as the number of FBG-based sensors or devices to be analysed.

Original language	English
Pages (from-to)	119-132
Number of pages	14
Journal	International Journal of Intelligent Systems Technologies and Applications
Volume	3
Issue number	1-2
DOIs	https://doi.org/10.1504/ijista.2007.014130
Publication status	Published - 2007
Externally published	Yes

Keywords

coupled mode analysis
electrostatic self-assembly
ESA
gratings
optical fibre sensor networks
tunable filters

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10.1504/ijista.2007.014130

Cite this

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title = "Fibre Bragg gratings with one defect towards development of optical networks interrogators",

abstract = "A theoretical analysis is given of an interrogator scheme for detection of the shift in resonance wavelength of a Fibre Bragg grating- (FBG-) based device. An Active Wavelength Tunable Filter (AWTF) allows adjusting the filtering of the signal received to the resonance wavelength of the FBG and knowing at the same time the value of the resonance wavelength. This avoids the need for a spectrum analyser. The Wavelength Tunable Filter (WTF) selected for the detection scheme is an FBG with a liquid crystal defect of optimised thickness whose refractive index is modified by the voltage applied, leading to a control of the central wavelength of the WTF. If the signal of several FBGs needs to be controlled, the scheme can be modified by using a Multiple Wavelength Tunable Filter (MWTF) consisting of as many WTFs as the number of FBG-based sensors or devices to be analysed.",

keywords = "coupled mode analysis, electrostatic self-assembly, ESA, gratings, optical fibre sensor networks, tunable filters",

author = "\{Del Villar\}, Ignacio and Matias, \{Ignacio R.\} and Arregui, \{Francisco J.\}",

year = "2007",

doi = "10.1504/ijista.2007.014130",

language = "English",

volume = "3",

pages = "119--132",

journal = "International Journal of Intelligent Systems Technologies and Applications",

issn = "1740-8865",

publisher = "Inderscience Publishers",

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TY - JOUR

T1 - Fibre Bragg gratings with one defect towards development of optical networks interrogators

AU - Del Villar, Ignacio

AU - Matias, Ignacio R.

AU - Arregui, Francisco J.

PY - 2007

Y1 - 2007

N2 - A theoretical analysis is given of an interrogator scheme for detection of the shift in resonance wavelength of a Fibre Bragg grating- (FBG-) based device. An Active Wavelength Tunable Filter (AWTF) allows adjusting the filtering of the signal received to the resonance wavelength of the FBG and knowing at the same time the value of the resonance wavelength. This avoids the need for a spectrum analyser. The Wavelength Tunable Filter (WTF) selected for the detection scheme is an FBG with a liquid crystal defect of optimised thickness whose refractive index is modified by the voltage applied, leading to a control of the central wavelength of the WTF. If the signal of several FBGs needs to be controlled, the scheme can be modified by using a Multiple Wavelength Tunable Filter (MWTF) consisting of as many WTFs as the number of FBG-based sensors or devices to be analysed.

AB - A theoretical analysis is given of an interrogator scheme for detection of the shift in resonance wavelength of a Fibre Bragg grating- (FBG-) based device. An Active Wavelength Tunable Filter (AWTF) allows adjusting the filtering of the signal received to the resonance wavelength of the FBG and knowing at the same time the value of the resonance wavelength. This avoids the need for a spectrum analyser. The Wavelength Tunable Filter (WTF) selected for the detection scheme is an FBG with a liquid crystal defect of optimised thickness whose refractive index is modified by the voltage applied, leading to a control of the central wavelength of the WTF. If the signal of several FBGs needs to be controlled, the scheme can be modified by using a Multiple Wavelength Tunable Filter (MWTF) consisting of as many WTFs as the number of FBG-based sensors or devices to be analysed.

KW - coupled mode analysis

KW - electrostatic self-assembly

KW - ESA

KW - gratings

KW - optical fibre sensor networks

KW - tunable filters

UR - https://www.scopus.com/pages/publications/84951715869

U2 - 10.1504/ijista.2007.014130

DO - 10.1504/ijista.2007.014130

M3 - Article

AN - SCOPUS:84951715869

SN - 1740-8865

VL - 3

SP - 119

EP - 132

JO - International Journal of Intelligent Systems Technologies and Applications

JF - International Journal of Intelligent Systems Technologies and Applications

IS - 1-2

ER -

Fibre Bragg gratings with one defect towards development of optical networks interrogators

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Keywords

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